Set Checkpoint

Hey guys, so I have been working on ReviaSet for the past few months, and I think I'm at a pretty good place right now. While I will have to go back and delete some cards that just don't fit in anymore (mainly cards with ascent as I have replaced white's mechanic with Stalwart), I also need to get other people's opinions on the set. The lore of the set is that the five colors of mana and their practitioner's are competing to be the current pharaoh's supported color of mana. Meanwhile the soon to be planeswalker Nyo-Kaiset jealously plots ways to ignite the spark he is convinced he has. When Bolas comes to him with an opportunity to become more powerful, he takes it despite all warnings. The theme of the set is Egyptian, Aztec, and Arabian, and is meant to be a monocoloured based set. The current mechanics as I intend are
Stalwart X (Whenever this creature attacks, it gets +X/+0 until the end of turn for each other attacking creature)
Blaze (Whenever this spell would deal damage, if the recipient of the damage has been dealt damage before during this turn, this spell deals twice it's damage instead.)
Foresee (Name a card, then reveal the top card of your library. If you named the card, than it was Foresaw.)
Cultivate/Cultivated (If mana produced by nonland sources was used to cast this spell...)
Mummify (As this card enters a graveyard you may pay X, if you do you may cast it from your graveyard and it becomes Mummified.)
There are some obvious overpowered and mistyped cards that I will look into, but I need help from my fellow cardsmiths to make this set the best it can be. Thank you for your time.
Link to the Set:
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